Nat. Med. 17, 231 (2011); published online 7 March 2011; corrected after print 11 March 2011

In the version of this article initially published, the manufacturer of bevacizumab (Avastin) was reported incorrectly as Merck. The manufacturer of bevacizumab is Genentech/Roche. The error has been corrected in the HTML and PDF versions of the article.

The article also states that the US Food and Drug Administration (FDA) approved bevacizumab on the basis of a phase 3 trial that showed a median increase in progression-free survival of 5.9 months, which is consistent with the published literature (N. Engl. J. Med. 357, 2666–2676, 2007). An independent review of the data concluded that the progression-free survival difference was 5.5 months, which is listed on the FDA-approved label for bevacizumab.

On December 15, the FDA's Office of New Drugs (OND) issued a decision memo on Avastin, which states that “it is the conclusion of OND that the breast cancer indication for Avastin be withdrawn.” The FDA has granted Genentech/Roche a public hearing on the matter, to be held in June 2011.